Martin is doing an experiment to see the way plants grow without sun. he has one
plant outside in normal levels of sunlight and another plant in a dark closet. in this
experiment, what is the plant that is in the dark closet called?
variable
scientific method
experiment
control

Differentiation of cells changes the nucleic information. true false

Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.

What is turgor pressure, what causes it, and what does it do for a plant?